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Definite integral (estimates)

On the right window, you can select the kind of estimation that you want, depending on the choice of the heights of the rectangles in the definition of the definite integral. You can also increase or decrease the number of divisions of the interval. In the case of the estimate S_n, by controlling the value of k, you can chose how far from the left endpoints or right endpoints within each division you want your sample points to be.